U3: Gravity and Motion


Think-Pair-Share Inquiry Questions:
  1. What are the three laws of motion?
  2. What is gravity? How would you describe gravity?
  3. What are the properties of gravity? What does it affect and how does it affect these things?
  4. What is meant by zero-gravity or zero-G?
  5. What do you think is meant by hypergravity and microgravity?
  6. What is the difference between weight and mass?
  7. What does it mean to be in orbit?
  8. How do you think the human body reacts to short-term & long-term exposure to zero-G environments?

Useful simulations:


Gravity Force Lab
Click to Run
Gravity and Orbits
Click to Run



Historical Perspectives, Essential Text Readings & Notes:

Class lecture portion about Newton and his Law of Universal Gravitation found within.
Wallace Notes for Unit 3 Gravity and Motion

Historical Videos Parts 1 & 2 - Watch for HW 2/23/15


Read the pages listed below from the Gravity and Motion Reading PDF file.
*IMPORTANT: right click on Adobe Icon and select "save target as" to download document to your computer.


The Universe - Gravity Video




GRAVITY Web-quest!Note: when you are in the web-quest you have to click and drag the variables around for the calculations and the grey and yellow data points for the graphs. Do NOT print out any work - copy all tables/graphs/answers into your notebook NEATLY.



A review of classical mechanics and Isaac Newton:



Law of Gravity Formula Practice: Begin by watching the following videos on using Newton's Formula to calculate the force of gravity between two objects. After you watch, move on to Practice Sheet 1 (#1-3, #6-8), where you will read the intro page and then attempt the practice problems in your notebook. Check your answers, then move on to practice sheet 2 (#1-4). Remember to:

1. Identify the formula by writing it out for each problem with the appropriate variables

2. Identify the variables by making a list and writing what the quantity is for each variable (G is always 6.67e-11, but M, m and r will change). Include units!

3. Substitute the quantities for the variables and solve. Include units on every value except for G throughout the problem.

I should see 3 steps clearly laid out in your notebooks for every problem that you are calculating FG .



#1-3, 6-8


#1-4









All problems


Copy problems and show all work in notebooks!



HOMEWORK: Read the article about the Human Body in space found at the link below, and summarize or create a diagram in your notebook that describes how the human body responds to long durations in Zero G environments. There is a short video for extension, please watch.

Human Body in Zero G Article





Further Practice/Investigation:

WebQuest! (Click on Student Version - Gravity Simulation)
http://aspire.cosmic-ray.org/labs/tides/menu_tide.swf
More Practice with Gravity
Further Practice with Gravity
Black Hole Exploration Web Quest
Gravity Ghost Game (Release Date Coming Soon)

For Further Consideration:
















Great Video of Sunny Williams giving a tour of the International Space Station in Zero G!!

http://www.wimp.com/orbitaltour/

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Vocab:===
  • Mass
  • Matter
  • Weight
  • Force of Gravity
  • Distance
  • Center of gravity
  • acceleration
  • directly proportional
  • inversely proportional
  • acceleration due to gravity
  • G
  • M
  • m
  • r
  • F sub G
  • Inertia
  • Orbit
  • Ellipse
  • Inverse square law
  • Universal Law of Gravity
  • Law of inertia
  • Law of acceleration
  • Action/Reaction Law
  • Radius